# CODEBOOK — Psychological Well-being in Researchers and University Students (2019-2024)
## Variable Dictionary | V2 | 2026-03-19

## File: psychological_wellbeing_researchers_students_2019_2024.tab
64 observations × 13 variables

| N | Variable | Type | Description | Unit/Values | Source |
|---|----------|------|-------------|-------------|--------|
| 1 | population_type | Categorical | Target population | Researchers; PhD Students; Undergraduates; Postgraduates | — |
| 2 | region | Categorical | Geographic region | Global; USA; UK; Europe; Asia; Latin America | — |
| 3 | year | Integer | Reference year | 2019–2024 | — |
| 4 | n_sample | Integer | Sample size of the study | Number of participants | Primary source |
| 5 | pss10_mean_score | Numeric | Mean PSS-10 score (Perceived Stress Scale) | 0–40 (higher=more stress) | PMC/APA |
| 6 | burnout_prevalence_pct | Numeric | Prevalence of burnout (MBI criteria) | % of population | MBI/Wellcome Trust |
| 7 | career_satisfaction_pct | Numeric | % reporting career satisfaction | % | Nature PhD Survey |
| 8 | work_life_balance_score | Numeric | Self-reported work-life balance index | 1–10 scale | OECD/PMC |
| 9 | institutional_support_index | Numeric | Perceived institutional support index | 0–100 | PMC |
| 10 | main_stressor_1 | Categorical | Primary reported stressor | Job insecurity; Workload; Funding; Publish-or-perish | Nature/Wellcome |
| 11 | mental_health_diagnosis_pct | Numeric | % with clinical mental health diagnosis | % | PMC meta-analysis |
| 12 | data_source | Text | Primary bibliographic source | APA citation | — |
| 13 | notes | Text | Methodological notes or caveats | Free text | — |

## Coding Notes
- NA = data not available for that region/year combination
- PSS-10 cutoffs: 0-13 low stress; 14-26 moderate; 27-40 high
- MBI burnout threshold: emotional exhaustion ≥27 AND depersonalization ≥10 AND personal accomplishment ≤33